Stapling machine



Aug. 25, 1936.

Filed Aug. .20, 1934 4 Sheets-Sheet 1 so I9 V J Invent'or- Aug. 25, 1936. w. BARRETT STAP'LING MACHINE Filed Aug. .20, 19:54 4 Sheets-Sheet 2 Irv/altot W E. w m W Q 2 a F 5 I11 6 3 3 w u a l 2 I 3 5 Q. 7 4 3 O 3 4 a Aug. 25, 1936. w. BARRETT STAPLING MACHINE Filed Aug. 20, 1934 4 Sheets-Sheet 3 Inventor:

1936- w. BARRETT 2052,44

I STAPLING MACHINE Filed Aug 20, 1934 4 Sheets-Sheet 4 Figf Inventor-z Patented Aug. 25, 1936 STAPLING MACHINE William Barrett, International Falls. Minn., as-

signor to The Insulite Company, Minneapolis, Minn., a corporation of Minnesota 7 Application August 20, 1934, Serial No. 740,573

13 Claims.

This invention relates to stapling and more particularly to a machine for securing wire loops to fiber composition board.

In the building industry a number of .wall boards, plaster boards, and plaster wall boards have been developed which have, to'a considerable extent, become substitutes for the ordinary and well-known form of wood lath. These substitutes may comprise layers of cementitious or plastic material between cover sheets of paper or the like orthey may comprise vegetable fiber composition board. The wall boards when applied to studs or rafters of a building form a suitable base on which plaster can be applied and a bond is formed between the plaster so applied and the wall board 'or plaster board. When applying plaster boards which have been secured to rafters or studding the joints between the studding have a tendency to open and break the air seal as well as permitting the plaster'to enter the joint. To overcome this reinforcing members are secured along one edge of each plaster board in a certain definite arrangement with an overlapped joint. This arrangement prevents theopening of the joint by: applied pressure and insures that no plaster will enterthe joint. l One object of this invention is to apply wire loops reinforcing members in a rapid and economical manner and to insure that theyare always positioned in the proper place along one edge of the boards. r a

For the purpose of this application there has been elected to set forth one particular arrangement of the apparatusfor securing reinforcing members to the edge of boards of the type described but it is to be understood that it is here set forth for illustrative purposes only and are not to be accorded any interpretation such as might have the effect of limiting what is claimed as the invention short of its true and comprehensive scope in the art. a

Objects additional to those set forth will become apparent with reference to the appended specification and to the accompanying drawings I in which:

Figure 1 is aside elevational view and section of stapling machine showing the hammers in their normal position.

Figure .2 is a view similar to Figure 1 but showing the hammer in its uppermost position.

.Figure 3, is a sectionalview with parts broken away showing the hammer just after the loops have been secured to the board.

. vFigure 4. is a view with parts broken away disclosing the means of feeding one wire loop to the hammers at each operation.

Figure 5. is a top plan View of the stapling machine with portions broken away.

Figure 6 is a sectional View with portions broken away showingthe means for positioning and holding a staple in place along the edge of a board supported by a table top.

Figure 7 is a sectional view of board with the staple showing the manner in which it is secured in place on a board. I

Figure 8 is a view representing the position of the staple prior to being driven into the board.

Figure 9 is a view of the finished product with certain parts broken away.

Referring to the drawings my numerals ID indicates a table frame preferably made of channel members but of course it is to be understood that it may be made of any suitable material.

The table top H is hingedly secured at the front edge of the table frame by hinge member l2. To the frame is secured member l3 which has the upper edge thereof higher than the table top when the table top is in the position shown in Figure 1. Along the inner edge of the hingedly connected top H is secured metal strip M,

for bending the staple points. Along one of the edges of the table is secured positioning metal strip member l (Figure 5) which extends above the top edge of the frame member to insure that the boards are properly arranged upon the top II. The top and member It) may be made in one piece,- of course if this arrangement is used member l3 is not connected to the frame. In the alternate construction the top H, extends further under the member 4|, and'the member I3, is not used. That is. the hingedly connected member is made into a unitary structure.

Secured to the Lmderside of the top I I is mem ber [6 which has hingedly secured thereto member I! whichhas an opening extending therein, Operating rod I8 is adapted to reciprocate in the aperture in the member l1; Adjustably secured around the upper end of the rod I8 is spring member which is held in position on the rod by adjustable collar 19. The rod 1 8 is hingedly connected at 2! to foot lever 22. The foot lever 22 is pivoted at 24 to member 23 which extends across the table frame and is positioned at a suitable distance above the floor. The outer end of the operating lever 22 has secured thereon a foot treadle 25; At the opposite end of the member is secured hammer operating rod 26 which has near the upper end thereof cut out portion 21.

Connected to the foot lever 22 at a suitable point is rod 28 for operating a pawl and ratchet so that the length of the rod 28 may be adjusted there is secured an adjusting sleeve 30 therein. At the upper end of rod 28 is secured member 29 to which is hingedly attached member 3| which carries pawl 32. The pawl member 32 is operatively engaged to ratchet wheel, 33.

Suitably supported in members 34 is shaft 35 upon which the ratchet wheel 33 is rigidly connected. Mounted upon shaft 35 are a series of tooth wheels 36 the function of which wheels will be later described. The wheels 36 are rigidly secured upon shaft and are adapted to be rotated by the rotation of the ratchet wheel. Mounted operatively beneath each of the wheels 36a slide way 31 which is adapted to support wire loops. Members 31 are supported by members 40 and the slide ways are curved in the manner shown in Figure l. The shafts 3'! are held in their proper alignment and position by collars 39, thus insuring that the toothed wheels 36 and the ratcheted wheels 33 will always be in the proper operating alignment.

Secured to the frame member l0 in any suitable manner as by bolt 4| is member 4| which is adapted to partially encircle the slide ways 31 at the lower end thereof. Secured at the upper side of member 4| by nut 42 is spring finger members 43.

To the frame l0 are secured members 44 which support a shaft 45 at their upper ends. Rigidly mounted upon the shaft is a series of hammers 46. It has been found highly desirable that the hammers 46 be constructed and designed as shown in Figure 2. The hammers 46 are connected in pairs so that one hammer is adapted to operate upon each side of the slide ways 31 as shown in Fig. 5. Secured to the central located set of hammers in the enlarged rear end portion are shafts or bars 41 and 48. For holding the hammer member in the position shown in Figure 1 there is secured to the enlarged end portion of the hammer a spring member 49 which is adjustably secured to member 44 by screw threaded bolt 50.

Operation An article which is to have secured wire loops or staples is placed upon the table top H. For instance a sheet of wall board A is placed upon the table and made to assume the proper position. A stapling member 38 is permitted to fall to the position against the hammers as shown in Figure 1. The operator then forces the lever 22 down by placing his foot upon the treadle 25, forcing downward the lever 22 at the outer end causing rod 8 to be forced upwardly. The spring 20 forces the table top H to the position shown in Figure 2 as the lever 22 continues its downward movement at the outer end and its upward movement at its inner end the rod l8 continues to raise and passes into the opening in member l'l. As the inner end of the lever 22 is raising member 26 moves upwardly and raises the hammers to their highest position as shown in Figure 2. As the hammers 46 reach the upper limit of their travel the shaft 41 forces the rod 26 from engagement with shaft or bar 48 and permits the hammers to fall, and to be initially actuated by the force of the springs 49. After the hammers have fallen and secured the wire staples in place the hammers are returned to their normal position by spring member 49. As the inner end of the operating lever 22 starts on. its downward movement the ratchet wheel 33 is caused to be advanced in a predetermined amount by the pawl, 32. This action releases or permits to slide along members 31 staples or wire loops. These loops travel down until they engage the hammers (Figure 1) which block their further travel along the slideways. When the hammers are caused to be raised to their upper position the wire loops that engage the hammers slide down between members 4| and the spring fingers 43 hold them in the proper position upon the wall board to which they are to be secured. The hammers upon their downward descent strike the spiked ends of such wire loops and force the sharpened ends through the material and the ends in strike plate member |4 bend their ends so as to lock the staple in place.

'The central pair of hammers or the hammers positioned in operative position with respect to member 26, is raised by the operating member 26 but as each pair of hammers is rigidly secured upon shaft 45 they are forced to operate in synchronism. The wire staples may be placed upon the slideways 3'! manually or they may be placed thereupon mechanically.

Having thus described the invention what I claim is:

1. In a machine for securing wire loops to fibrous sheet material including a frame, a top member hingedly secured at one edge to said frame, an operating lever mounted upon said frame, means connected to said operating lever for yieldingly supporting the top member, means for holding wire loops along an edge of a sheet of fibrous material supported by the top member, a series of hammers mounted on said frame member, and means for operating the series of hammers for securing the wire loops to said material supported by the top member.

2. A machine of the class described comprising a frame, a top hingedly connected to the frame, an operating lever mounted on the frame, means connected to the operating member for yieldingly supporting the top, a series of hammers mounted on said frame, means for positioning wire loops along the edge of a sheet of material supported by the top, means connected to the operating lever for raising the hammers, and means associated with the hammers for discharging the hammers from the raised position.

3. A machine of the class described, including a hingedly supported platform for holding sheet material, slideways for holding wire loops, means associated with the slideways for permitting one loop at a time to move along the said slideways, means for positioning and holding wire loops along the edge of the sheet of material supported by the platform, and hammers associated with the platform for securing the loops to the sheet material.

4. A machine for securing wire loops to sheets of fibrous material comprising a table having a hingedly secured top thereon, means for moving the free end of said table, means for positioning wire loops along the edge of the sheet of fibrous material supported by the said top, means for driving said loops, and means operatively connected to said moving means for yieldingly supporting the said top in position when securing the wire loops in place on the said fibrous sheet material.

5. In a machine of the class described including a frame, a top member hingedly secured at one edge to said frame, a spring member for supporting the free end of said top, an operating lever supported by said frame and adapted to cooperate with the spring member supporting the free end of said top, sliding ways for carrying wire loops, means cooperating with said slide Ways for positioning wire loops along the edge of a sheet of fibrous material supported by the top member, and means operatively connected to said operating lever for securing said wire loops in position along the edge of said fibrous material.

6. In an apparatus of the class described including a hingedly connected and yieldingly supported platform, means associated with said platform for positioning a sheet of fibrous material thereon, means for positioning wire loops along the edge of the said sheet of fibrous material, ratchet control means for feeding wire loops to said position means, and a series of hammers operatively associated with said platform for securing the said wire loops in position on the sheet of fibrous material.

'7. In an apparatus of the class described comprising a frame, a top hingedly secured at one edge to said frame and adapted for holding a sheet of fibrous material, an operating lever pivotedly supported by said frame, a member depending from said top, a rod secured to said operating lever and adapted to cooperate with the member extending from said top, a spring member associated with said rod for yieldingly supporting said top, means for supporting a series of wire loops above one edge of the top, a series of hammers operatively supported by said frame, and means for raising said hammers and permitting them to fall in substantially simultaneous relationship for securing the wire loops in position along the edge of the fibrous material supported by the said top.

8. In an apparatus of the class described comprising ahingedly connected means for supporting a sheet of fibrous material, an operating lever, a rod connected to said operating lever andhavinga spring member positioned around the upper end thereof for yieldingly holding the hingedly connected means in raised position, a socket member associated with the rod and the spring member, means for holding a series of wire loops, means associated with said holding means and operatively connected to said operating lever for controlling the movement of the said Wire loops along the loop holding means, a shaft, a series of hammers supported by said shaft, and means for operating the hammers.

9. An apparatus of the class described comprising a frame, a top hingedly secured at one edge of the frame and adapted to support a sheet of fibrous material, means for supporting the free edge of the top, slideways mounted on said frame for holding wire loops, means for controlling the movement of the wire loops along the slideways, members partially encompassing one end of the slideways, spring members mounted on the said encompassing members and cooperating with the encompassing members for holding loops along the edge of a sheet of fibrous material supported by the top, hammers mounted on the frame and means for operating the hammers.

10. In an apparatus of the class described comprising a frame, a platform hingedly supported at one edge by the said frame, means for yieldingly supporting the opposite edge of said platform, a series of slide ways for supporting wire loops, members associated with each of said slide ways for positioning wire loops along an edge of a composition board supported by said platform, means for controlling the movement of the wire loops along the said slide ways, a shaft supported by said frame, a series of hammers rigidly mounted upon said shaft, means for raising at least one pair of said hammers, means for releasing said hammers whereby the hammers will secure the wire loops to said composition board, and means for returning the hammers to their normal positions.

11. In an apparatus of the class described in combination of a hingedly supported platform, means for raising one edge of said platform, means for positioning wire loops along one edge of a fiber composition board supported by said platform, a series of hammers supported by ashaft, means for holding the hammers in an idle position, means for raising the hammers, and means for releasing the hammers to fall whereby the wire loops positioned along the edge of the fiber composition board are secured thereto.

12. In an apparatus of the class described comprising a frame, a platform hingedly secured to said frame, a member hingedly supported and depending upon the free end of said platform, an operating lever pivotally mounted upon said frame, a rod connected to said operating lever and operatively associated with said member depending from-said platform, a spring member mounted around the upper end of said last mentioned rod to hold yieldingly in operating position the said platform, a series of slide ways for supporting wire loops, means associated with said slide ways for controlling the movement of the wire loops therealong, means associated with the lower end of said slide ways for positioning the wire loops in place along the edge of a sheet of material supported by the said platform, a. shaft supported by said frame, a series of hammers secured thereon, and means attached to said operating lever and adapted to actuate the said series of hammers.

13. In a machine of the class described in combination with a platform for supporting sheet material, slideways for holding wire loops, means for controlling the movement of wire loops along the slideways, means associated with the slideways for positioning and holding wire loops along the edge of the material supported by the platform, hammers associated with the platform for 60 securing the loops to the sheet material, and means for operating the hammers.

WILLIAM BARRETT. 

